pts

该函数用来计算时间序列的盒维数 具体内容说明在程序中标出(The function used to calculate the time series dimension of the boxes indicate the specific content of the successful bidder in the process of)

数字信号处理，很多种变换，可以直接在matlab中运行，很好用(Digital signal processing, it is a variety of transformations, can be run directly in matlab, very good use)

This toolbox provides tools to create sophisticated MATLAB graphical user interfaces that resize gracefully. The classes supplied can be used in combination to produce virtually any user interface layout.

使用低通滤波器从含有噪声的信号中提取有用的正弦波 (见实验指导书 实验九 数字滤波器中的第一题) 目的：用数字滤波器从含有高频噪声的采样数据中提取正弦信号。 要求：①输入信号为一正弦波，并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号（用以模拟含有噪声采样序列）。 （模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现，为了使滤波效果明显，本实验的高频噪声是用高频均匀分布白噪声（Uniform）通过Butterworth高通滤波器过滤生成的，高通滤波器的截止频率设为10倍输入信号频率。） ②在程序中设计一个低通巴特沃斯滤波器，以滤除信号中的噪声分量，提取输入的正弦波信号 。 ③可调节信号滤波器的截止频率和阶数，可显示滤波前与滤波后的时域信号。 ④给出滤波前与滤波后的频谱特性的显示。 (Using low pass filter extracting useful sine wave signal containing noise(see experiment instruction digital filter in the first nine questions)Objective: to use digital filter sampling data extract containing high frequency noise sine signal.Requirements: (1) the input signal is a sine wave, and add a white noise interference to simulate the random disturbance signal of the signal transmission (to simulate contains noise sampling sequence).(simulated the sampling sequence contains noise available sine wave signal superposition of high frequency noise, in order to make the filtering effect is obvious, the experiment of high frequency noise is Uniform distribution with high frequency white noise (Uniform) by Butterworth high-pass filter to filter generated, high-pass filter cutoff frequency set to 10 times the size of the input signal frequency.)(2) in the program design a low-pass butterworth filter, in order to filter out the noise in the signal component, extract the input sine wav)

ode45 function- the matlab code of ode function

这是学习MATLAB很好的学习资料，是《MATLAB及在电子信息课程中的应用》一书的各章配套程序，很有帮助价值。(This is a very good learning materials to learn MATLAB is " MATLAB and in the course of electronic information" supporting the various chapters of the book program, useful values.)

说明：  pm调制，该仿真有助于相位调制,这是模拟调制方面的知识(pm modulation, the simulation will help phase modulation, which is knowledge of analog modulation)

说明：  基于帧间差分法的运动目标检测程序，可以直接使用，付视频(Frame difference method based on motion detection program that can be used directly)

QAM系统的全数字设计，学位论文，较长较细致，值得参考，不多说，免费下(QAM system, all-digital design, dissertations, longer than the detail, it is also useful, not more than that under free)

THis is a matlab for EIT model